Pump-valve.



W. T. BIRCH.

PUNIP VALVE.

APPLICATION FILED rEa.1.1914.

lglpg. Patented May 25, 1915.

a 51 J4 um 1| Hmm J5 Il MIMI@ section taken on r. vez

rurirsvanvna arrosto..

specieanomr iettersratent.

reas' oracion.

n, or cnrca'eo, rumorsira-tenten tray at, reis.;

lerrigiml aypfiicaon. filed Zanuaryt, islrriai No. 7063259 Bividcc'l., andthiszap'picationled February 7.919%! Sl No. @73157.

To all whom-it vengeance/rou Be it known that il', WILLIAM. citizen ofthe United States, .residing-,atthie cago, in the countyJ of Cookand Stateof illinois, have'inventedlcertain. new and use ful vimprov.ementsfin; Ifuirnp-A which the followingisjaspecification...

My invention .relates to improvements in valves. and has-forits general object to provide a' valve structure which shall have.;

the combined 'advantagesofs few, parterre@- plicity 'and cheapness vantageous cooperation'.` between itsvarious elements andk other. practical benefits here.A

inafter to .beinade more. clearly:l` apparent.

Another object of my vide a double, foto doubler ringvalvejconover` admi,A thereverse face used.-

' further object. of; my inventionfis to utilize. certainparte ofthe idle faceof inyving'the ku stroken ordentdprevent 1nj ury` tothe va ve structure `and, the noise` of operation to a minimuxn; This application isa divlsionof my pat: ent for improvements 1n pumpvalves, Number 1,090,775 granted,

taining means isclaimed@ @ther and furtherobjjects of myfinventionthrough a valve constructedingaccordanee with my invention. Fig. 2; isatransverse line offFig. 1'.. l`Fig. 3 is an enlarged, fragmentary section of parts of the structure shown in Fig; lrand of the ring and Fig. 4 is a similar'section showing the rings 'iii their final position prior-toy deiecting or` 'ing position.

spinning over the inner rib intoits ring lock` ln all the views, the same reference characters indicate similar parts.

' Specically 10 indicates the body part of the lvalve, of suitable metal, such as a casting of brass, havingintegral ring-engaging means or ribs upon 'both of ,its sides to secure packing rings thereto for operative as- .Binon, a5

may;

of construction, ad-

inventionl is .to-profA the purpose of .calshionv lviarohlfth, 1914;, in Whichvthe specicformof ring and ring re'-v gr body part before assembling .and

sociation'vvth the'face of thevalve: seat 11. i

lig have shown theI valve constructed with paclaingrings on. each ofy its side faces. so

that after onesetof rings has become defective, by .wear orinjury the; valve, maybe reversed andthermgs on theopposite side be. used.. The body partis centrally. l

perforatedasat 1 2 tomeceivezthe stern 13,

Whichfext sffroin the-hub 1.14 ofthe. valve. seat 11., .'llaefbody partglvofthe valve has extend laterally therefrom, andconoen- 'trewiththe saidcentral perforation, aseriesof concentric ribalta, 1,-6=and;17 providing therebetween groovesl 18e-18 some vvhat Wider, than they Width of. thepacking rmgs,. to be. carried by thebbdya at the yseat engagingportlons -fof. saidA rings. The packmg rings-l-fld areA preferably composed of vulcanized or` senil-vulcanized, rubber.

The-ring 159 isto -be contained inthe groove 18.- betvveenthe ribs la and15. The'seating surfer/eefthe ring, that portion contained between thevertical edges 20 and 21, is some- What-narrower thanthebaseportion 22, this baseportonfoffthe ring being tapered to the (vertical, edge 2l, it being; substantially as wide elthe grooveflS. Fig,- 3 shows the rela.- tive loe'ationof the parte of the doublaface valve beforethe rings are placed in the ooves 181-18 and Fig. l shows the location offthepartsafter therings have been placed inthe grooves and before the ribs l'-fl have:- been': radially deeeted into contact with the-inolined-.portons 2 2 of the rings. ,Forpackingthe sternl, ll=provide a similar jbutsnialler packing; ring-1 19 adapted to be contained inithe groove-18. providedy by theribB 1,6 and: 176. For theipurpose of convenient .constructora-.the Widery base portion ofthis ringeirtendsradially and outwardly 'fronifits-vertiealwedges.- Both of these packing rings are made in the form substantially showin` andi vulcanized previous to placing the ring carrying portions of the valve body. After the rings have been placed in their respective grooves, as shown in Fig. 4, the laterally extending `annular ribs 15 and '16 are radially deflected, as shown in Fig. 1, by a process of rolling or spinning, causing the ribs to tightly engage the enlarged tapered surfaces of the respective rings and to securely hold them in their proper positions in the body part of thel valve Without imposing an strain upf/)n the body part of the valve ten ing to enlise dislll@ tortion thereof and causing the seating faces of the rings to be displaced from their norf mal horizontal plane. It Will thus be seen that each of the packing rings is independently held in place by an integral part of the valve body. This construction has considerable advantage over prior structures wherein extraneous parts requiring screws,

' or the like, are employed to holdwthe rings in placev as such arrangements are liable to disintegration and tobecome loosened andv displaced by use. f The ribs and 1G may be readily rolled in place for holdingl the rings in their proper positions much morequickly than a single screw could behinserted in the body part, and When these,v ribs have been delected into their proper positions, for purpose described, they arettherefor all times and intmately'secure and hold' the rings in their places by intimate engagement with the entire circumference Without possibility of disengagement. AThe double-'face valve being employed, as showninjFig. '1,"the deflected rib 16, that may, at the time,'be y011 the top surfaces Vvof thev valvefprovides a convenient tapering guide Vfor the valveclosing spring 23. The upper, end 'ofthe spring 23 engages under-'fthe curledsover edge 24, of thel cup 25 Whichisfsecured by screw-threaded engagementto the upperv end of the stem and by meanslofl the nut 26.

The spring 23 acts inV thei'isual fashionto return the valve to its seat `and yieldingly The. y idle packing ring'l9 surroundingthe valve d stem on the upper side of the valve kcushions the blow against the head 25' when the to permit the opening of the valve.

valve body isthrown to eXtreme upperposition.l Itis thereforevapparent that the construction providing a), double-face,

double-ring valve this particular form not only attains thevdesired feature of reversibility but alsomythze4 advantages of ay cushioned, noiseless and efiicient valve.

Some of the advantagesfofmy device overv prior structures willbecome readily apparent to personsfskilled in the art from the foregoing descriptonaf-The integra-l means of. vintimately securingithe packing' ring at every point along and'a'djacent' to its` circumferential surfacgfafter the ring has been hand in "the inserted, is kof lgreat structural and operative value. It is further clearly advantageous for the reason there is no strain irnposedl upon `,thebody part of the packingring-carrying body to cause it to become warped or distorted; therefore, the contacting faces of the outer and innerV packingrings will remain always in the same horizontal plane. The perfect axialfalinement of the spring, maintained by the laterally projecting, deflected rib, inclosing the smaller packing ring, in coperation Withthe guiding nut 25, prevents shifting of Athe spring to either side rof the central axis which would tendV to produce lanfundesirable clutching effect vbetweenV the center increasing friction betweenk ythe parts and Vbore of the valve body I'O'and the vstemfl', Y

frequently causing sticking ofthe valve.

Th'e application of spring pressure so-fnear the aXialcenter is also beneficial. f

` Having claim is r l. A tivo face valve body; a plurality of rings, carricd'on each face and integral means carried by the valve body for clamping the rings thereto.

2. In a device of the character described, a double face reversible valve, comprising a valve body, havingV a central stem receiving aperture, a valve seat, a stem' projecting therefrom to receiveV and guide said n valve body, -tWo concentricV packing Vrings secured to each side face of saidv valve body,

vone ring on each face approximately surrounding said stem,=ahead on vthe upperY described my invention', what I lend of 'said stem'to receive a valve seating spring; a spring engaging said head, andV encompassing the rib inclosing vthe smaller idle packing ring, ,whereby said spring `is held `concentrically Withfthe steniand said smaller packing lring is lbrought into 'con--` tact with thev fixed `spring head, vtojcushion and render noiselessthe blow dueto the extreme movement? off said` valve body..

Inftestimjony whereof Ihereunto set'my presence of two subscribing p Y WILLIAM T. BIRCH; f In thejpresence of l FRE BAIN, c

l MARY EIALLEN. I

lWitnesses. 

